Lee Jeong has had a long-time crush on his childhood friend, and track-and-field athlete, Lim Yui. After entering college, Jeong was determined to gradually drift away from Yui, but the latter unexpectedly confesses to him that he has milk coming out of his breasts... Moreover, he even asked me to massage him there?! \Then, I\m in your care, Jeong-ah!\ My friend\s tiddies are a burden to me, a life-long otaku!